Windmill.



No. 670,805. Patente R. A. NICHOLL.

WINDMILL.

(Application filedbct. 24. (Nu Model.)

WITNESSES: mvgmofi ,4 Mar/1.1402011 '/,r f

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Nrrno STATES PATENT @rlrrcn.

ROBERT ADAM'NIOHOLL, OF MARLETTE, MICHIGAN.

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SPECIFICATION forming part of Letters Patent No. 670,805, dated March26, 1901.

Application filed October 24:, 1900. erial No. 34,146. (110 model.)

To (tZZ whom it may concern.-

Be it known that LROBERT ADAM NIoHoLL, a citizen of the United States,and a resident of Marlette, in the county of Sanilac and State ofMichigan, have invented a new and Improved WViudmill, of which thefollowing is a full, clear, and exact description.

The purpose of theinvention is to construct a direct-stroke windmill,and also to provide a means whereby the wheel may be instantly stoppedor checked in speed, as occasion may demand, and to so construct andcombine the several parts of the windmill that said parts will be strongyet light and the arrangement of the parts he exceedingly simple.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed inthe claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both figures.

Figure 1 is a plan view of the improved windmill. Fig. 2 is a sideelevation of the upper portion of the tower and the wind-wheel andadjacent parts, a portion of the windwheel being broken away.

A represents the tower, which is provided with the usual table 10, and Brepresents the head-block, mounted to turn on the table. As isparticularly shown in Fig. 1, this head-block comprises a body 11, anarm 12 at one side and end portion of the body, and two arms 16 at theopposite side of the body, the arm 12 being substantially flat on thetop, while the arms 16 are curved in an upward direction. The arm 12near its inner end loosely receives the upper portion of a tube 13,which is secured to the table 10 and receives a pum p-rod 14. Thehead-block turns around the pipe or tube 13 on roller-bearings 15, asshown in Fig. 2. A shaft 17is mounted to turn in the outer ends of thearms 16 of the head-block, and at the end of the shaft 17 which isadjacent to the wind-wheel C a crank-arm 18 is formed,

. and at the free end of the said crank-arm a said spindle is at oneside of or out of alinement with the opening or tube in which thepump-rod has movement.

The pump-rod 14 is pivotally attached to one end of an arm 13, and theother end of the arm is attached to the shaft 17, so that as thewind-wheel 0 turns the shaft 17 is given a rocking motion and thepump-rod arm 13 is moved up and down, imparting vertical movement to thesaid pump-rod. The hub of the wind-whee1 is provided with a taperingflange 23 at its inner end,andabrake-shoe 24is adapted to engage withthis flange either to entirely stop the revolution of the wheel C or tocheck the speed thereof. This brake-shoe 2-tis secured to one end ofarod 25, held to slide in the arms 16, and at the end of this rod,opposite that at which the brake-shoe 24 is placed, a head 26 is formed,and a spring 27 is coiled around the rod, having bearing against thehead 26 and one of the arms 16, as is shown in Fig. 1. This springserves to normally hold the brake-shoe 24 out of engagement with theflanged or braking su r'face 23 of the wheel 0. The brake-shoe iscarriedto an engagement with this flange 23 through the medium of anactuating-arm 28, pivoted at the outer end of the arm or extension 12 ofthe head-block, the free end of which actuating-arm is adapted to engagewith the head 26 of the brake-rod and force the rod inward or indirection of the wheel. This actuating-arm is connected by a link 29with a tail-bar 30, the latter being pivoted to the forward edge of thearm extension 12 of the headblock, and the said tail-bar is providedwith a weight 31, which serves to normally hold the actuating-arm 28from engagement with the brake-rod. When the brake is to be applied, achain 32 is drawn upon. and passes over a pulley 33 on the head-blockand down through an opening 34in the headblock and table of the tower toa convenient point near the ground. I

By reason of the spindle 22, on which the wind-wheel is mounted, beingat one side of the center of the pipe through which the pump-rod passesthe wheel 0 is able to govern itself, as when the wind reaches a certainheight the wheel will swing around out of the wind.

It may here be remarked that the arm 28 This chain is attached to thetail-ban serves two purposes.

It is not only a brake, but it serves as a medium for carrying the tailor vane. The member 30 is practically a weighted arm, and when theweight is lifted by means of the chain 32 it serves to swing the tail orvane around, which tailor vane is usually connected with the arm 28, asillustrated by dotted lines in Fig. 1, and at the same time the weightedarm 30 crowds the brake against the flange of the wheel and prevents thewheel from running when out of gear.

Ordinarily the wind-wheel has six arms, which are fastened to the end ofthe hub nearest the cam or eccentric, and each arm is fastened by abrace-rod to the outer end of the hub. The said wind-wheel in ordinaryconstruction is provided with two rims and thirty fans.

It may be further remarked that a ball-andsocket swivel is preferablyproduced in the pumprod below the turn-table to allow the mill to turn,as the wind changes, without twisting or straining the pump-rod.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a windmill, a head-block, a support on whighthe head-block turns, a spindle secured to the head-block at one side ofits longitudinal center of rotation, a wind-wheel mounted to turn onsaid spindle, having an eccentric groove in its hub, a crank-shaftmounted on the head-block, a member of which enters the said groove inthe wheel-hub, a pump-rod located at the center of rotation of theheadblock, and an arm attached to the crankshaft and connected with thepump-rod, for the purpose set forth.

- 2. In a windmill, a head-block, a support on which the head-blockturns, a spindle secured to the head-block at one side of its center ofrotation, a wind-wheel mounted to turn on said spindle, having aneccentric groove in its hub, a crank-shaft mounted on the head-block, arolling member of which enters the said groove in thewheel-hub, apumprod located at the center of rotation of the head-block, an armattached to the crankshaft and connected with the rod, a brake-' shoecarried by the head-block, a tapering flange formed on the hub'of thewind-wheel, with which the tapering surface of the brakeshoe engages,means fornormally holding the brake-shoe from engagement with the saidflange, and devices manipulated from a point 7 below the head-block foroperating the brakeshoe, as and for the purpose set forth.

wheel mounted to turn on said spindle, the Y hub of which wheel isprovided with an cecentric groove at one end and an inclined exteriorsurface at its grooved end, of a crankshaft mounted to rock upon thehead-block, a member of the crank-arm of said shaft extending into thesaid eccentric groove, an arm attached to the crank-shaft and connectedwith the pn mp-rod, a spring-controlled rod mounted to slide on thehead-block, a brake-shoe carried by the said rod, adapted for engagementwith the inclined surface of the wheelhub, an actuatingarm for the brakerod pivoted on the head block, a Weighted tail-bar, a link connectionbetween the tail-bar and actuating-arm, and means for raising thetail-bar, as set forth.

4. In a windmill, the combination, with a table, a support for the same,a head-block mounted to turn upon said table,having a projection from aside of its body, in which projection an opening is made which connectswith an opening in the table, a pump-rod capable of vertical movement insaid opening in the head-block, a spindle secured to the end of thehead-block at a point rearward of the opening through which the pump-rodpasses, and a wind-wheel mounted to turn on said spindle, the hub ofwhich is provided at one end with an eccentric groove and at the sameend with an inclined exterior surface, of a shaft mounted to turn insupports carried by the head-block, a crank-arm at one end of saidshaft, a member of which crankarm enters the eccentric groove in thehub, an arm attached to the said shaft at a point between its bearings,which arm is pivotally connected with the pump-rod, a spring-controlledbrake-rod mounted to slide in the head-block, a brake-shoe carried bysaid rod, adapted to engage with the inclined outer surface of thewheel-hub, which shoe is normally out of engagement with said inclinedsurface of the wheel, a tail-bar also carried by the head-block, anactuating-arm operated by the tail-bar and carried by the head-block,the actuating-arm being adapted to force the brake-shoe in direction ofthe wind-wheel, and means for operating the tail-bar, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ROBERT ADAM NIOHOLL.

Witnesses:

D. STUART MCCLURE,

R. A. KILGOUR.

ICO

